Induction-pipe for bogie-locomotives



(No Model.)

W. MASON.

Induction Pipes for Bogie Locomotives.

No. 242,464. Patented June 7,1881.

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Invent-or.

filwio N. PETERS. Pholo-Liihngmphor. Washington. D. C.

a "n w UNITED STATES PATENT OFFICE.

\VILLIAM MASON, 0F TAUNTON, MASSACHUSETTS.

INDUCTION-PIPE FOR BOGlE-LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No, 242,464, dated June 7,1881.

Application filed April 2, 1881.

To all whom it may concern:

Be it known that I, WILLIAM MASON, of- Taunton, ot' the county ofBristol and State of Massachusetts, have invented a new and usefullmprovementinthe Steam-Induction Pipes for so-calledBogieLocomotive-Engines, and I do hereby declare the same to bedescribed in the following specification and represented in theaccompanying drawings, of which Figure l is a vertical section, andFigs. 2, 3, and 4 are transverse sections, of an ind uctionpipe providedwith my invention, the nature of which is duly defined by the claimshereinafter presented.

My said improved induction-pipe is to lead steam from the boiler to thevalve-chests of the cylinders. Owing to the cylinders of abogielocomotive being supported byamovable truck capable of oscillating,so as to readily adapt itselfto the curves and undulations of therailway, it becomes necessary to have the steamconduit not only flexibleto admitof such movements of the truck, but capable of expanding orcontracting lengthwise without injury to it (the said conduit) orcausing escape of steam from its joints.

In the drawings the induction conduit is shown as constructed in foursections, A B O D, arranged and formed as represented, .the uppersection, A, being permanently fixed to the boiler G and to opentherefrom, so as to lead the steam from it into the section B, which isarranged horizontally, the two sections at their contiguous ends beingadapted to each other by a spherie-segrnental joint (shown at a b) andconnected by screw-bolts c c, furnished with nuts 0 c, and going throughflanges d d d d, extending from the sections, all being as shown in Fig.3.

The lower of the two sections 0 D commu nicates with the valvechests ofthe enginecylinders and moves with them, and is applied to the next orlower of the two horizontal or intermediate sections B O by aspheric-segmental joint, as shown at a I), the convexity ofwhichisformed upon an annulus, E, arranged between the sections (1 and D andseparate from each, but having a flat top surface upon which theadjacent elbow of the section 0 rests with a ground or steam-tightjoint.

The two sections O and D are connected to- (No model.)

gether by bolts F, of suitable length, (see Fig. 4,) going withsufficient looseness through flanges from the sections, and providedwith springs and nuts, all being substantially as represented in Fig. 2and hereinafter more particularly described.

Each of the intermediate sections B and O is provided with elbows, orturnsup at one end and down at the other, in manner as represented atfgand h t in Fig. 1, the said elbows of each section being connected byand ar:

ranged, as represented, with two concentric intermediate tubes, is l.

The next adjacent elbows, 970,01 the two intermediate sections B and Oare adaptedto each other by a spheric-scgmental joint, as shown at (L band they are held in connection by twolong screw-bolts, F F, (see Figs.1 and 2,) going down through flanges mm on, projecting from the elbowsin manner as shown in Fig. 2, the said bolts being outside of the boresof the two elbows. Each of such bolts extends through a helical spring,0, and is provided with two nuts, 1) q, all being arranged asrepresented.

It may be further stated that between the two next adjacentelbows of thesections B and O is a separate annulus, E, like the annulus E,hereinbeforedescribed, such annulus E! hav-. in g the convexity of thejoint formed upon it, and, besides, being flat on its top for thecontiguous flat end of the elbow to rest on with a ground joint. Thisannulus admits of the slight longitudinal movement of either sectionrelatively to the other, as it may be expanded or contracted by heat orotherwise moved.

From the above it will be seen that by having the intermediate orhorizontal sections of the conduit or their elbows adapted to each otherby a spheric-segmental joint and connected by bolts provided withsprings, as described, the joint is not only kept tight thereby, but thelower section is free to turn or move more or less, as occasion mayrequire, relatively to the upper section,the joint beingmaintainedsteamtight in the meantime. The same may be said with respectto the sections 0 and D. The flat annuli of the joints and contiguoussections admit of lengthwise expansion or contraction of the horizontalsections relatively to each other or to the vertical sections, suchexpansion or contraction being due to variations of temperature of thesections.

I am aware that a pendent and vibrating pipe has been attached to thetube-sheet of a locomotive-engine boiler by an elbow-joint, an d to thesteam chest or chests of the cylinders by a tube terminating in aball-and-soeket joint, the vibrating pipe being introducedlongitudinally within the said tube and applied thereto by astuffing-box, all being as shown in the United States Patent No.119,591. My invention difl'ers therefrom, as I have connecting bolts andsprings to the two tubular sections of the steam-induction conduit, andadapted such to each other by a spheric-segmental joint, which admits ofsliding and turning movements of the sections not attainable by an ymechanism described or represented in such patent.

\Vhat I claim in the steam-induction pipe of WM. MASON.

Witnesses:

R. H. EDDY, E. B. PRATT.

